Updated Version History (markdown)
added v1.3.0
Updated release notes for v1.2.0
Added v1.1.0 release notes
added links to v1.0.1
added v1.0.1
Fixed link for #96
Added v1.0.0
Added v0.5.2 changelog
Added v0.5.1
Added v0.5.0 changelog
Created Version History (markdown)